<template>
  <div id="app">
    <div class="container">
      <!-- 顶部框模块 -->
      <div class="form-group">
        <div class="input-group">
          <h4>品牌管理</h4>
        </div>
      </div>

      <!-- 数据表格 -->
      <table class="table table-bordered table-hover mt-2">
        <thead>
          <tr>
            <th>编号</th>
            <th>资产名称</th>
            <th>价格</th>
            <th>创建时间</th>
            <th>操作</th>
          </tr>
        </thead>
        <tbody>
          <!-- <tr >
            <td></td>
            <td></td> -->

          <!-- 如果价格超过100，就有red这个类 -->
          <!-- <td class="red"></td>
            <td></td>
            <td><a href="#" >删除</a></td>
          </tr> -->
          <pannel
            v-for="(item,index) in list"
            :key="index"
            :id="item.id"
            :ind="index"
            :name="item.name"
            :price="item.price"
            :time="item.time | forTime"
            @del="delbtn"
          ></pannel>
        </tbody>
        
        <tfoot v-show="list.length === 0">
          <tr>
            <td colspan="5" style="text-align: center">暂无数据</td>
          </tr>
        </tfoot>
           
      </table>

      <!-- 添加资产 -->
      <form class="form-inline">
        <div class="form-group">
          <div class="input-group">
            <input
              type="text"
              class="form-control"
              placeholder="资产名称"
              v-model="name"
            />
          </div>
        </div>
        &nbsp;&nbsp;&nbsp;&nbsp;
        <div class="form-group">
          <div class="input-group">
            <input
              type="text"
              class="form-control"
              placeholder="价格"
              v-model="price"
            />
          </div>
        </div>
        &nbsp;&nbsp;&nbsp;&nbsp;
        <!-- 阻止表单提交 -->
        <button class="btn btn-primary" @click.prevent="btn">添加资产</button>
      </form>
    </div>
  </div>
</template>

<script>
import pannel from "./components/06.vue";
import moment from "moment";
export default {
  data() {
    return {
      name: "", // 名称
      price: 0, // 价格
      list:JSON.parse(localStorage.getItem('listkey')) || []
    };
  },
  components: {
    pannel,
  },
  filters: {
    forTime(time) {
      return moment(time).format("YYYY-MM-DD HH:mm:ss");
    },
  },
  methods: {
    btn() {
      if(this.name.trim() === '' || this.price.trim() === ''){
        return alert('请输入内容！')
      }
      this.list.push({
        id: +new Date(),
        name: this.name,
        price: this.price,
        time: new Date(),
      });
      this.name = ''
      this.price = ''
    },
    delbtn(ind){
     return this.list.splice(ind,1)
    }
  },
  watch: {
    list:{
      deep:true,
      handler(){
        localStorage.setItem('listkey',JSON.stringify(this.list))
      }
    }
  }
};
</script>

<style >
.red {
  color: red;
}
</style>